Home / 20,286.85-27,993.07-11,333.24

Finding the Fourth Proportional to 20,286.85, 27,993.07 and 11,333.24

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Solution

The fourth proportional to 20,286.85, 27,993.07 and 11,333.24 is: 15,638.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.85 : 27,993.07 = 11,333.24 : x
  2. Step 2: Convert to fraction form
    20,286.85/27,993.07 = 11,333.24/x
  3. Step 3: Cross multiply
    20,286.85x = 27,993.07 × 11,333.24
  4. Step 4: Simplify right side
    20,286.85x = 317,252,180.65
  5. Step 5: Solve for x
    x = 317,252,180.65/20,286.85
  6. Step 6: Final answer
    x = 15,638.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.